PHOTOS: Windy City Produce gutted by fire

Investigators are looking into whether someone set fire to a grocery store in Chicago's South Old Irving Park neighborhood. (WLS Photo)

Investigators are looking into whether someone set fire to a grocery store in Chicago's South Old Irving Park neighborhood. (WLS Photo)

Investigators are looking into whether someone set fire to a grocery store in Chicago's South Old Irving Park neighborhood. (WLS Photo)

Investigators are looking into whether someone set fire to a grocery store in Chicago's South Old Irving Park neighborhood. (WLS Photo)

Investigators are looking into whether someone set fire to a grocery store in Chicago's South Old Irving Park neighborhood. (WLS Photo)

Investigators are looking into whether someone set fire to a grocery store in Chicago's South Old Irving Park neighborhood. (WLS Photo)